tbody img {
    width: 50px;
}

.setNum {
    width: 50px;
}

table {
    border: 1px solid #d04;
    width: 1200px;
    text-align: center;
    margin: 0px auto 20px;
}

#nav {
    width: 1200px;
    margin: 0px auto;
}
.del:hover{
    cursor: pointer;
    background-color: #d04;
    border-radius: 10px;
    color: white;
}
input{
    border: none;
    width: 30px;
    text-align: right;
}
.up,.down{
    border: 1px solid black;
    display: inline-block;
    width: 16px;
    height: 16px;
    line-height: 16px;
}